Fuel filters are designed to make sure that the fuel that is fed to your engine is free of any contaminants or large particles which could cause inefficiency during combustion, or even damage the engine itself. The fuel system in your vehicle is not a closed system, and it is possible that moisture can be introduced either via the intake or the fuel filler. Condensation can also form inside the fuel lines and fuel tank as a result of temperature changes. This water eventually causes corrosion in the tank and the lines, and small bits of rust can sit at the bottom of the tank itself, eventually moving through the lines on their way to the engine. There is usually more than one filter – one in or near the tank, and another in the engine bay. This dual-filtering system ensures that nothing can get through to the motor.
On occasion, it is possible that the fuel filters become clogged. Sometimes this is due to accumulated dirt and corroded particles, but other times it is due to larger chunks of corrosion that are pulled against the filter during heavy acceleration, blocking the fuel pickup. In the first case, it is necessary to replace the filter, but if repeated clogging occurs, then the fuel tank and the fuel system themselves must be cleaned out in order to remove the corrosion that is causing the problem. Clogged fuel filters can have a significant impact on gas mileage, and severely limit the efficiency of an engine.

FUEL FILTER

Service information states the fuel filter is lifetime. If that is true, it is located inside the fuel pump assembly and isn't serviceable unless you replace the entire pump assembly. I looked up in repairlink and it doesn't show an external fuel filter in any of their diagrams.

This filter may be a lifetime fuel filter located in the fuel pump assembly or an external 3-port inline filter that allows clean fuel to return to the fuel tank.

The fuel system consists of the following components:

- Fuel tank:
- The midship fuel tank is between the frame side rails on the LH side
- The aft-of-axle fuel tank is mounted at the rear of the vehicle between the frame rails

- Fuel tank filler pipe which contains a restrictor plate to permit only unleaded fuel to be pumped into the fuel tank
- Quarter-turn fuel tank filler cap
- Fuel tubes
- Vapor tubes
- Fuel Pump (FP) and sender assembly which provides filtered, pressurized fuel to the engine and a signal to indicate fuel level to the instrument cluster, and contains:
- a serviceable fuel sender.
- an inlet filter.
- a check valve that maintains system pressure after the FP is shut off.
- a lifetime fuel filter.

Response From Tom Greenleaf☆☆☆☆☆Top Rated Answer

Not 100% sure but famous to be on frame rail hidden a bit by a shield that you remove first.

Filter like this....../

Brand not import for the pic just that those use one time clips on the new one so don't mess those up,

T

Fuel Filter In & Out

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Question From mdb31483 on Fuel Filter In & Out

Hello,

I have a 1993 Dodge B250 Van. I was changing the fuel filter and was dumb enough to forget to check which was the right direction to position the fuel filter. The fuel filter has one hose coming from the fuel tank. Then on the other side of the filter to the engine. I am assuming the "in" is the fuel tank and the "out" is to the engine. Am I correct. THANKS!

Response From way2old☆☆☆☆☆Top Rated Answer

That is correct. Easy enough.

1989 chevy caprice fuel filter

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Question From Guest on 1989 chevy caprice fuel filter

also can anyone tell me where the fuel filter is located on a 1989 chevy caprice?

Response From way2old☆☆☆☆☆Top Rated Answer

Right side frame rail.

Inline Fuel Filter

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Question From Guest on Inline Fuel Filter

I have a inline fuel filter that has pressure type fittings. I want to replace the filter. Do i just pull the lines off with force or are there tools. My car is a Ford Expedition. This is the fuel filter on the chasis

Response From DanD☆☆☆☆☆Top Rated Answer

No donâ€™t force the lines: Iâ€™m not sure what style of coupler is on the truck but there is either a retaining clip to remove or youâ€™ll need a tool that will slide into the coupler and release the tangs that are holding the line to the filter.
Hereâ€™s what one style of disconnects look like There are all different types and styles all seem to work ok.
Dan.

fuel filter

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Question From Guest on fuel filter

I can find no fuel filter listed for an 05 Toyota 4 runner. Do they even have one? How is the fuel filtered?

Response From Tom Greenleaf

It has to have a filter! It may be too new for some parts stores to list so keep trying or get one at the dealer,

T

Response From way2old

Don't know how accurate it is, but Alldata Pro has the filter in the tank. Warranty pays 1.9 hours to replace. Fuel pump pays 2.0 hours. Here is part number. It is for OEM Fuel Filter 2330050120 $53.07

Response From Guest

Thanks guys. I guess I'll see what the dealer says. I was just curious, because if you look at the scheduled maintenance on the 4runner, it shows everything down to the cabin filter. But it neve shows changing the fuel filter. I'm not sure what the deal is.

Response From Guest

Just spoke with Toyota and the filter is in the tank, but they claim it never needs changing.
Thanks for you input.

Response From Tom Greenleaf☆☆☆☆☆Top Rated Answer

Great info way2old. Problem is that just really disappointed me to hear that Toyota has in their infinate wisdom decided to make such a move like that.

I can just see telling a customer that replacing a fuel filter is going to cost over $200 bucks!! Hey---- but this is progress T

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